With the MLS transfer window opening Thursday, ESPN looks back at some of the best and worst big-money signings in league ...

Thomas Müller has officially joined the Vancouver Whitecaps, but it wasn't easy because of MLS' Discovery Rights. What are ...

Notably, Lionel Messi's transfer to Inter Miami ranks fourth. Thierry Henry's move to New York Red Bulls comes in sixth, ...

The rule will take effect for the 2012 season, but there are no plans right now to add any designated player slots. Durbin said the markets most likely to be tapped by the new rule were South America, ...

With another high-profile free agent move to the MLS influenced by the so-called Discovery Rights, Flashscore explains the ...

Thomas Müller has signed a two-year deal with the Vancouver Whitecaps, with his earnings set to increase significantly ...

The MLS created the designated player rule when David Beckham joined the LA Galaxy. This rule allowed teams to sign three players who would be considered outside of their salary.

Since then, MLS has improved in fits and starts. The introduction of the Designated Player rule in 2007 was entirely about getting David Beckham into the league, but teams across the league ...

Don Garber, commissioner of the North American league, said changes to the 'designated player' rule could be made next week and may mean allowing teams two such exemptions from the salary cap ...